Improvement in atmospheric governors



UNITED STATES PATENT OFFICE.

BENJAMIN MAOKERLEY, OF PAINT, OHIO.v

IMPROVEMENT IN ATMOSPHERIC GOVERNORS.

Specification forming part of Letters Patent No. 55,134, dated May 29,1866.

To all whom it may concern:

Be it known that I, BENJAMIN MAGKEELEY, of Paint, in the county ofHighland and State of Ohio, have invented a new and Improved AtmosphericGovernor; and I do hereby declare thatthe following is a full, clear,and exact description thereof, which will enable those skilled in theIart to make and use the same, reference being had to the accompanyingdrawing, forming part' of this specification.

The drawing represents a longitudinal central section of this invention.

This invention relates to a governor in which by the compression of theatmospheric air in a cylinder or suitable receiver a brake is applied,and by these means the speed of a motor of' any desired description, butparticularly such driven by animal power, can be regulated with thegreatest ease and accuracy.

A represents a cylinder, which is bored out to receive two pistons, B C.The piston B is the pump piston, and it connects with some part ofthemotor in such a manner that a reciprocating motion is imparted to it. Itis provided with one or more air-valves, c, which open inward, so thatthe same on the back stroke otl the piston admits air into the cylinder,and on the forward stroke said air is prevented to escape.

The piston G connects by its rod b with a brake, D, which stands inclose proximity to the pulley E, mounted on the shaft, by which thepo'wer of the motor is transmitted to the working machines. A suitablespring, o, has a tendency to force the piston C back to such a positionthat the brake D does not come in contact with the pulley E.

F is an air-cock, by which the effect ot' the governor can be regulated.If this air-cock is open, or partly open, and the piston B moves slowly,the air'compressed by the same in the cylinder A has time to escapethrough the aircock F, and the piston C remains stationary; but if thespeed ot' the piston B increases, or it1 the air-cock is nearly orentirely closed, the air compressed in the cylinder A forces the pistonC out against the power of' the spring c, and the brake is applied. Assoon as the speed ot' the piston B decreases the spring c forces thepiston C back to its original position and the brake is taken off.

It is obvious that instead of the spring o a weight might be used tocarry the piston O back.

What I claim as new, and desire to secure by Letters Patent, is-

An atmospheric governor composed ot' a cylinder, A, with two pistons, BC, and brake D, arranged substantially as and for the purpose described.

BENJAMIN MAGKEELEY.

Witnesses:

H. W. HARVEY, F. C. HIXsoN.

